BD438 Transistor Datasheet & Specifications
PNP
TO-126-3
High Power
ST
VCEO
45V
Ic Max
4A
Pd Max
36W
hFE Gain
130
Quick Reference
The BD438 is a PNP bipolar transistor in a TO-126-3 package by ST. This datasheet provides complete specifications including 45V breakdown voltage and 4A continuous collector current. Download the BD438 datasheet PDF above for detailed pinout diagrams and application circuits.
Technical Specifications
| Parameter | Value | Description |
|---|---|---|
| Manufacturer | ST | Original Manufacturer |
| Package | TO-126-3 | Physical mounting |
| Transistor Type | BJT | Bipolar Junction Transistor |
| VCEO | 45V | Breakdown voltage |
| Ic | 4A | Collector current |
| Pd | 36W | Power dissipation |
| DC Current Gain | 130 | hFE / Beta |
| Frequency | 3MHz | Transition speed (fT) |
| VCEsat | - | Saturation voltage |
| Vebo | - | Emitter-Base voltage |
| Cutoff Current | - | Leakage (ICBO) |
| Temp | -65℃~+150℃ | Operating temp |
Equivalent Transistors & Alternatives
| Part | Type | Package | VCEO | Ic | Pd |
|---|---|---|---|---|---|
| BD438S | PNP | TO-126-3 | 45V | 4A | 36W |